Refrigeration apparatus
    1.
    发明授权
    Refrigeration apparatus 失效
    制冷装置

    公开(公告)号:US07752864B2

    公开(公告)日:2010-07-13

    申请号:US11659121

    申请日:2005-08-01

    IPC分类号: F25B13/00

    CPC分类号: F25B13/00 F25B2313/0231

    摘要: A refrigeration apparatus (1) is provided with a refrigerant circuit (1E) along which are connected a compressor (2), an outdoor heat exchanger (4), an expansion mechanism, an indoor heat exchanger (41) for providing room air conditioning, and a cooling heat exchanger (45, 51) for providing storage compartment cooling. The refrigerant circuit (1E) includes a discharge side three way switch valve (101) for varying the flow rate of a portion of the refrigerant which is discharged out of the compressor (2) and then distributed to the indoor heat exchanger (41) and the outdoor heat exchanger (4) during a heat recovery operation mode in which the indoor heat exchanger (41) and the outdoor heat exchanger (4) operate as condensers. As a result of such arrangement, even when the amount of heat obtained in the cooling heat exchanger (45, 51) exceeds the amount of heat required in the indoor heat exchanger (41), surplus heat is discharged without excessive decrease in the discharge pressure of the compressor (2).

    摘要翻译: 制冷装置(1)具备:制冷剂回路(1E),连接有压缩机(2),室外热交换器(4),膨胀机构,室内空调用的室内热交换器(41) 以及用于提供储藏室冷却的冷却热交换器(45,51)。 制冷剂回路(1E)包括排出侧三通切换阀(101),用于改变从压缩机(2)排出的一部分制冷剂的流量,然后分配到室内热交换器(41)和 在室内热交换器(41)和室外热交换器(4)作为冷凝器运转的热回收运转模式中的室外热交换器(4)。 作为这种结构的结果,即使在冷却热交换器(45,51)中获得的热量超过室内热交换器(41)所需的热量的情况下,也可以排出多余的热量而不会使排出压力过度降低 的压缩机(2)。

    REFRIGERATION SYSTEM
    2.
    发明申请
    REFRIGERATION SYSTEM 审中-公开
    制冷系统

    公开(公告)号:US20090120113A1

    公开(公告)日:2009-05-14

    申请号:US12352327

    申请日:2009-01-12

    IPC分类号: F25B1/00

    摘要: When a guard timer of a compressor (141) expires, an R2 signal from a control section (140) of an outdoor unit is turned on (Action I). If a control section (120) of a freezer unit recognizes from an inside temperature detected by a temperature sensor (124) that the R2 signal is turned on and a request for a shift to a freezer thermo-on state is raised (Action II), a freezer electromagnetic valve (121) is opened (Action III). In general, when the electromagnetic valve (121) is opened, it is supposed that an increase in refrigerant suction pressure is detected by a pressure sensor (146) and then the compressor (141) is actuated. However, if an outside air temperature is low, the refrigerant suction pressure remains lower than a predetermined value. Therefore, the control section (120) actuates a booster compressor (131) (Action IV) to raise the refrigerant suction pressure of the compressor (141).

    摘要翻译: 当压缩机(141)的保护定时器期满时,来自室外机的控制部(140)的R2信号被接通(动作I)。 如果冷冻装置的控制部(120)从由温度传感器(124)检测到的内部温度识别出R2信号被接通并且提出向冷冻热接通状态的转换的请求(动作II) ,打开冷冻电磁阀(121)(动作III)。 通常,当电磁阀(121)打开时,假设通过压力传感器(146)检测制冷剂吸入压力的增加,然后压缩机(141)被致动。 然而,如果外部空气温度低,则制冷剂吸入压力保持低于预定值。 因此,控制部(120)启动增压压缩机(131)(动作IV),以提高压缩机141的制冷剂吸入压力。

    Refrigerating Apparatus
    4.
    发明申请
    Refrigerating Apparatus 审中-公开
    制冷装置

    公开(公告)号:US20080110199A1

    公开(公告)日:2008-05-15

    申请号:US11794319

    申请日:2005-12-22

    IPC分类号: F25B1/00

    摘要: The loss of refrigerant pressure which is caused in a return-side interconnecting piping line (19) comprising return-side interconnecting piping lines respectively extending from outlet ports (24, 34, 44) of single-stage side utilization units (12, 13, 14) to an inlet port (61) of a heat source unit (11) is set such that the lowest valued refrigerant pressure loss is caused by a said return-side interconnecting piping line of the return-side interconnecting piping line (19) that is connected to the lowest of the single-stage side utilization units (12, 13, 14) in compartment preset temperature.

    摘要翻译: 在包括分别从单级侧利用单元(12,13,13)的出口(24,34,44)延伸的回流侧互连管道的回流侧互连管路(19)中引起的制冷剂压力的损失, 14)到热源单元(11)的入口(61)被设定为使得最低值的制冷剂压力损失由返回侧互连管道(19)的所述返回侧互连管道引起, 在室内预设温度下连接到最低级的单级侧利用单元(12,13,14)。

    Refrigeration system
    5.
    发明申请
    Refrigeration system 审中-公开
    制冷系统

    公开(公告)号:US20070137231A1

    公开(公告)日:2007-06-21

    申请号:US10580335

    申请日:2005-09-13

    IPC分类号: F25B49/00 F25B1/10

    摘要: When a guard timer of a compressor (141) expires, an R2 signal from a control section (140) of an outdoor unit is turned on (Action I). If a control section (120) of a freezer unit recognizes from an inside temperature detected by a temperature sensor (124) that the R2 signal is turned on and a request for a shift to a freezer thermo-on state is raised (Action II), a freezer electromagnetic valve (121) is opened (Action III). In general, when the electromagnetic valve (121) is opened, it is supposed that an increase in refrigerant suction pressure is detected by a pressure sensor (146) and then the compressor (141) is actuated. However, if an outside air temperature is low, the refrigerant suction pressure remains lower than a predetermined value. Therefore, the control section (120) actuates a booster compressor (131) (Action IV) to raise the refrigerant suction pressure of the compressor (141).

    摘要翻译: 当压缩机(141)的保护定时器期满时,来自室外机的控制部(140)的R 2信号被接通(动作I)。 如果冷冻装置的控制部分(120)从由温度传感器(124)检测到的内部温度识别出R 2信号被接通并且提出转换到冷冻热接通状态的请求(动作II ),打开冷冻电磁阀(121)(动作III)。 通常,当电磁阀(121)打开时,假设通过压力传感器(146)检测制冷剂吸入压力的增加,然后压缩机(141)被致动。 然而,如果外部空气温度低,则制冷剂吸入压力保持低于预定值。 因此,控制部(120)启动增压压缩机(131)(动作IV),以提高压缩机141的制冷剂吸入压力。

    Refrigerating apparatus
    6.
    发明申请
    Refrigerating apparatus 审中-公开
    制冷装置

    公开(公告)号:US20070074523A1

    公开(公告)日:2007-04-05

    申请号:US10577011

    申请日:2005-09-02

    IPC分类号: F25D21/06 G05D23/32 F25D21/00

    摘要: A refrigerator circuit (110) and a freezing circuit (30) are connected to an outdoor circuit (40) in parallel in a refrigerant circuit (20), and a freezer circuit (130) and a booster circuit (140) are connected in series in the freezing circuit (30). The booster circuit (140) includes a booster compressor (141) and three-way switching mechanisms (142, 160). During cooling operation of a freezing heat exchanger (131), first operation is performed in the three-way switching mechanisms (142, 160) so that the refrigerant evaporated in the freezing heat exchanger (131) is compressed in the booster compressor (141) and is sucked into a variable capacity compressor (41). During defrosting of the freezing heat exchanger (131), second operation is performed in the three-way switching mechanisms (142, 160) so that the refrigerant evaporated in the refrigeration heat exchanger (111) is compressed in the booster compressor (141), is supplied to the freezing heat exchanger (131), and then, is sent back to the refrigeration heat exchanger (111).

    摘要翻译: 冰箱回路(110)和冷冻回路(30)在制冷剂回路(20)中并联连接到室外回路(40),冷冻回路(130)和升压回路(140)串联连接 在冷冻回路(30)中。 升压电路(140)包括增压压缩机(141)和三通切换机构(142,160)。 在冷冻热交换器(131)的制冷运转时,在三通切换机构(142,160)中进行第一操作,使得在冷冻热交换器(131)中蒸发的制冷剂在增压压缩机141中被压缩, 并被吸入变容量压缩机(41)。 在冷冻热交换器(131)的除霜期间,在三通切换机构(142,160)中进行第二操作,使得在增压压缩机(141)中在制冷用热交换器(111)中蒸发的制冷剂被压缩, 供给到冷冻热交换器(131),然后被送回制冷用热交换器(111)。

    Supercooling apparatus
    7.
    发明申请
    Supercooling apparatus 审中-公开
    过冷却装置

    公开(公告)号:US20070022777A1

    公开(公告)日:2007-02-01

    申请号:US10570879

    申请日:2005-06-09

    IPC分类号: F25B1/00 F25B25/00

    摘要: A subcooling unit (200) includes a refrigerant passage (205) connected to liquid side communication pipes (21, 22) of a refrigerating apparatus (10). When a subcooling compressor (221) is operated, subcooling refrigerant circulates in the subcooling refrigerant circuit (220) to perform a refrigeration cycle, thereby cooling refrigerant of the refrigerating apparatus (10) which flows in the refrigerant passage (205). A controller (240) of the subcooling unit (200) receives the detection value of a suction pressure sensor (234) and a refrigerant temperature sensor (236). The controller (240) utilizes input signals from the sensors (234, 236) to control driving operation of the subcooling compressor (221) on the basis of information obtained within the subcooling unit (200). Thus, the operation of the subcooling compressor (221) can be controlled without sending and receiving a singal to and from the refrigerating apparatus (10) to which the subcooling unit (200) is incorporated.

    摘要翻译: 过冷却单元(200)包括与制冷装置(10)的液体侧连通管(21,22)连接的制冷剂通路(205)。 当过冷却压缩机221运转时,过冷却制冷剂在过冷却制冷剂回路220中循环,进行制冷循环,从而冷却在制冷剂通路205中流动的制冷装置10的制冷剂。 过冷却单元(200)的控制器(240)接收吸入压力传感器(234)和制冷剂温度传感器(236)的检测值。 控制器(240)利用来自传感器(234,236)的输入信号,根据在过冷却单元(200)内获得的信息来控制过冷却压缩机(221)的驱动操作。 因此,可以控制过冷却压缩机(221)的运转,而不会向从过冷却装置(200)装入的制冷装置(10)发送和接收单体。

    Refrigeration system
    8.
    发明授权
    Refrigeration system 失效
    制冷系统

    公开(公告)号:US07765817B2

    公开(公告)日:2010-08-03

    申请号:US11631859

    申请日:2005-11-21

    IPC分类号: F25B49/00

    摘要: In a refrigeration system, a first non-inverter compressor (2B) backs up one of an inverter compressor (2A) and a second non-inverter compressor (2C) by switching of a third four-way selector valve (3C). The refrigeration system includes: a suction pressure detection section (81) for detecting the suction pressure of the first non-inverter compressor (2B) after the issue of a switching command to the third four-way selector valve (3C); a command holding section (82) for, when the detected pressure of the suction pressure detection section (81) becomes lower than a predetermined value, determining that the third four-way selector valve (3C) has malfunctioned and holding the switching command; and a compressor standby section (83) for, upon the command holding section (82) holding the switching command, stopping the first non-inverter compressor (2B) and putting it into standby for a predetermined time.

    摘要翻译: 在制冷系统中,通过切换第三四通换向阀(3C),第一非变频压缩机(2B)备用逆变器压缩机(2A)和第二非变频压缩机(2C)中的一个。 该制冷系统包括:在向第三四通换向阀(3C)发出切换指令之后,检测第一非变换器压缩机(2B)的吸入压力的吸入压力检测部(81) 指示保持部(82),当所述吸入压力检测部(81)的检测压力变得低于预定值时,确定所述第三四通换向阀(3C)发生故障并保持所述切换命令; 和压缩机待机部分(83),用于在保持切换命令的命令保持部分(82)上停止第一非逆变器压缩机(2B)并将其置于预定时间待机状态。

    Refrigerartion apparatus
    9.
    发明申请
    Refrigerartion apparatus 失效
    制冷装置

    公开(公告)号:US20090007589A1

    公开(公告)日:2009-01-08

    申请号:US11659121

    申请日:2005-08-01

    IPC分类号: F25B1/00 F25B39/02 F25B41/04

    CPC分类号: F25B13/00 F25B2313/0231

    摘要: A refrigeration apparatus (1) is provided with a refrigerant circuit (1E) along which are connected a compressor (2), an outdoor heat exchanger (4), an expansion mechanism, an indoor heat exchanger (41) for providing room air conditioning, and a cooling heat exchanger (45, 51) for providing storage compartment cooling. The refrigerant circuit (1E) includes a discharge side three way switch valve (101) for varying the flow rate of a portion of the refrigerant which is discharged out of the compressor (2) and then distributed to the indoor heat exchanger (41) and the outdoor heat exchanger (4) during a heat recovery operation mode in which the indoor heat exchanger (41) and the outdoor heat exchanger (4) operate as condensers. As a result of such arrangement, even when the amount of heat obtained in the cooling heat exchanger (45, 51) exceeds the amount of heat required in the indoor heat exchanger (41), surplus heat is discharged without excessive decrease in the discharge pressure of the compressor (2).

    摘要翻译: 制冷装置(1)具备:制冷剂回路(1E),连接有压缩机(2),室外热交换器(4),膨胀机构,室内空调用的室内热交换器(41) 以及用于提供储藏室冷却的冷却热交换器(45,51)。 制冷剂回路(1E)包括排出侧三通切换阀(101),用于改变从压缩机(2)排出的一部分制冷剂的流量,然后分配到室内热交换器(41)和 在室内热交换器(41)和室外热交换器(4)作为冷凝器运转的热回收运转模式中的室外热交换器(4)。 作为这种结构的结果,即使在冷却热交换器(45,51)中获得的热量超过室内热交换器(41)所需的热量的情况下,也可以排出多余的热量而不会使排出压力过度降低 的压缩机(2)。

    Subcooling Apparatus
    10.
    发明申请
    Subcooling Apparatus 审中-公开
    过冷却装置

    公开(公告)号:US20080229769A1

    公开(公告)日:2008-09-25

    申请号:US10571940

    申请日:2005-06-09

    IPC分类号: F25B1/00

    摘要: A subcooling unit (200) includes a refrigerant passage (205) connected to liquid side communication pipes (21, 22) of a refrigerating apparatus (10). When a subcooling compressor (221) is operated, subcooling refrigerant circulates in a subcooling refrigerant circuit (220) to perform a refrigeration cycle, thereby cooling refrigerant of the refrigerating apparatus (10) which flows in the refrigerant passage (205). A controller (240) of the subcooling unit (200) receives the detection value of an outside air temperature sensor (231) or a refrigerant temperature sensor (236). The controller (240) controls the operation of the subcooling compressor (221) with the use of only information obtainable within the subcooling unit (200).

    摘要翻译: 过冷却单元(200)包括与制冷装置(10)的液体侧连通管(21,22)连接的制冷剂通路(205)。 当过冷却压缩机221运转时,过冷却制冷剂在过冷却制冷剂回路220中循环,进行制冷循环,从而冷却在制冷剂通路205流动的制冷装置10的制冷剂。 过冷却单元(200)的控制器(240)接收外部空气温度传感器(231)或制冷剂温度传感器(236)的检测值。 控制器(240)仅使用在过冷却单元(200)内可获得的信息来控制过冷却压缩机(221)的操作。